Scale



I Aug. 21, 1923. 1,465,613

M. M. MUNK SCALE Filed July 29, 1921 2 Sheets-Sheet 1 Z6 36 4 6 I Y 27 I I I I 271024 Q "Wm/70R WITNESSES 4 Arm/mks Aug. 21, 1923. 1,465,613

M. M. MUNK S GALE Filed July 20. 1921 2 Sheets-Sheet 2 WITNESSES (37 I M Midi/WENT??? a-X 4. w L W'"*' W14 A HORNE Y8 Patented Aug. 21, 1923.

UNITED STATES:

1,465,613. PATENT'OFFlCEg MAX MICHAEL MUNK, OF WASHINGTON, DISTRICT OF CQLUMBIA.I

SCALE.

Tolallwhomz'tmayconcem:

Be it known that I, .MAX MICHAEL MUNK, a citizen of Germany, who have declared my intention of becoming a. citizen of the United States, and a resident of Washington, in the District of Columbia, have invented certain. new and useful Improvements inScales, of which the following is a specification. f

My invention relatesto improvements in *5; scales, and it consists in the construction,

@ting it.

combination and mode of operation substantially as .hereindescribed and claimed. .7 'One of the foremost objects of the i11 vention is to provide ascale's for weighing letters and other small objects.

Another obj'ectof the invention is to provide a cheaply .manufactured letter scales which consists of a few arts stamped out of sheet metal and bent 1nto proper shape.

A further object of theinvention is to provide aletter scales of light yet strong construction, which is not unwieldly to handle and is so. low and relatively broad that there is no possibility whatever of upset A further and important object of the invention is to provide an arrangement of fulcrums stamped and bent from parts'of the'table and base and possessing a degree of yieldability which will prevent the scales lever from jamming;

A further object of the invention is to provide a'scales' of the constructiondescribed,

some of the stampedfulcrums including tongues which prevent the various fulcrums of the scales from falling apart.

. Other objects and advantages will appear inthe following specification, reference being hadto the accompanying drawing, in which 7 j e V Figure 1. is a perspective view-of the improved scales,

Figure 2is' a horizontal section thereof, taken substantially on the line 2-2 of re 1, a

igure 3 is a detail perspective view of the primary lever,

V Figure 4 is a detail perspective view' of the secondary lever,

Figure 5 is a plan view of the stamped top or table before the various supports are bent into position and p Figure6 is a plan view-of the stamped base, showing the various fulcrums before they are bent into position.

Application filed July 20, 192,1. VSeriaI 1%., 486,091.

The scales comprises only five parts the table 1, base 2, primary lever 3, second ary lever 4 and poise The latter is slidable on the graduated beam 6 which. in fact is a part of the secondary lever 4 (see Figures 1'and 4) The graduations of'the beam may be in accordance with any desired plan, i. e. inounces and. fractions thereof,

, etc; The upper edge 7 of the beam 6 is bent over to impart strength thereto,it being observed that the primary and secondary levers (like the table and base) are formed of'thin sheet metal. 1 3

F igure:2'illustrates the arrangement of fulcrums and suppo'rts. The fulcrums18,

9,10 and 11 are. bent up from the, base'2 along thelines 12 in figure 6. These ful crums support the primary levers ,3 and 4. The'table 1 has supports 18, 14, 15 and 16 which rests on the secondary and. primary levers.4 and 3. These supports are stamped and bent from the table 1, according to the plan shown in Figure 5. The flange ,17 at the left end is stamped to provide the supports 13and 14, which supports are bent inwardlyalong the dotted line 18 so that they assume positions at :right" angles to the Y At the right end of the table "1 the flange 19 is stamped to provide the support 15 as a. part of a relatively long arm '20; The

lengthof the arm makes-it resilient or yieldable, and the stamped voids 21 tend to aid either function. The arm 22, which is stamped. from the table top proper, in conti'nuation 'ofthe. support 16, has voids 23 fora like purpose. The various arms and supports last. mentioned are bent on the dotted lines 18 so that they assume the'shape shown in Figure 2.

Lever stops .24 are provided on the" end of the flange 19 nearest the observer in Figure 5. The lever 6 works between these stops as shown-in Figure 1. F langes25 on the sides of the table 1, are bent down to conceal ill void but may be so provided it desirable or necessary. The bending lines are indicated at 12, and when the various tulcruins and arms are bent into final shape, they assume positions as shown in Figure 2.

It is necessary to hold the *arious parts of the scales together when once assembled and for that purpose. both the tulcruuis 8 etc. of the base 2 and supports etc. oi the table 1, have tongues 31 and 32 respectively. extending over the V-shaped recesses therebeneath. These tongues are bent aside to admit the levers 3 and 4, then bent back in place to retain the latter. The lovers in turn are provided with recesses and at which places they rest against the :t'ulcrums 8 etc. or supports 13 etc, as the case may be;

In order that the operator may insert an instrument for the proper bending oi? the tongues and S2 and perhaps other parts oi the table and base, especially at the rightends oi? the scales, the base 2 has a cut-out portion 35 which is suiiiciently large to enable all of thenecessary manipulations. The remaining openings in the base are sutficieutly large to enable. access to the remaining parts. lVere it not for the various openings, the assembling of the scales would be very difficult, it not impossible.

An auxiliary tongue 36 is stamped from the base (see Fig. 6) bent vertically along the line 37 then out through the slot 26 until it extends over the beam (S of the lever 41:, This serves to hold the beam on its itulcrum 9. Like all oi the tongues 31 of the base 2, the upper edge of the auxiliary tongue 36 is bent over at right angles into an angle shape, so as to render the tongue more rigid. The exposed end of the primary lever 3 is cut away at 38 tomore readily occupy the extreme recess 34 of the scale beam 6.

Although the operation of the scales is doubtless apparent from the drawing, a brief recitation thereotiin connection with Figure 2, will be of assistance. Assume that a weight (a letter for exan'iple) is laid on the table 1. The supports 13,- I l, and 16 will bear down on the transverse portions of the levers 4 and 3, causing the longitudinal portions to rock on the base t'ulcrums S, 9, 10 and 11. The scale beam 6 will rise, anl so will the exposed end of the primary lever 3 which engages beneath the scale beam Thepoise 5 must be moved to the right or leiit until an equilibrium is reached, i. 0. until the'end oi the beam (3 enters between the steps 24;.

It cannot be en'iphasized too strongly that it is the manner of assembling the scales which involves one of the important teaturcs oi the invention. 'In the first place, all of the parts vare made of relatively thin metal, rendering the ii'ianu'lacti'ii'e o l the scales cheap and the article itself very light. The particular formation of the various supports, tulcrums and arms (EH22 and 1128, for enamele.) insures a requisite amount of yieldability or resiliency which absolutely pre ats jamming ot the bear- )arts when the scales is in use.

-l hile tl e constructon and arrangement ot the improved scales as herein described and claimed, is that or a gci'ierally preferred form, ol i-viously modifications and changes may be made without departing from the spirit oi the invention or the scope of the claims.

1 claim l. A scales, con'iprising a base and table oi: sheet metal, levers in bearing engagement with parts s amped and bent ilOlll the base and table, and means termed with certain of said rtzm'ipings. bent out to admit the levers 2nd bent back to retain them in hearing engagement and prevent the separation of the scale parts.

2. A scales, comprising a base and a table, oi tliin sheet metal, a system oi balancing levers, parts stamped and bent 'lron'i the base to provide yieldable fulcrums for the levers, and parts stamped and bent from the table to provide table-sup mrts hearing on the levers.

A scales, comprising a base and a table oit' thin sheet metal. a system oi balancing levers, parts stamped and bent from the base to provide yieldable tulcrums tor the levers, parts stamped and bent from the table to provide table-supports bearing on the levers, and extensions included in said parts to retain the levers in bearing engagen'ient therewith.

it. A scales, comprising a table, a base within the confines of the table, inward ex tensions on the table and base, one of the extensions of the base being outside otthc confines oi the table, and a system oi? levers largely within the confines of the base and in bearing engagement with inward extensions of the base and table but inclijidii'ig members )uding beyond the base and table to meet said outside extensions and have outside engagement themselves, the scales being low but broad to produce a stable structure.

A scales, comprising a table of sheet metal with supports stamped in one operation, a base with tulcrums stamped in one operation, and prin'iary and secondary levers each stamped in one operation, occupying bearing engagement witlrthc supports and tulcruins when bent into the tinal shape.

(3. A scales, comprising a base ot' sheet.

metal with i'ulcrums on arms stamped there-- from. the latter being relatively long to rein der them resilient; a table having supports on arms stamped therefrom, the latter being relatively long to render them resilient: and a system oi levers iiz 'ainst which the tulcrums and supports have bearing when. bent upwardly and downwardly respectively into shape.

7 A scales, including a sheet metal plate,

and a relatively long arm stamped and bent therefrom, including voids to render it light and yieldable, and a bearing portion with a tongue extending thereover but adapted to be bent aside to admit a companion bearing part 8. scales, including a base with a fulcrum stamped and bent u therefrom, a lever having a portion resting on the fulcrum, and an auxiliary tongue stamped, bent up from the base, and twisted over a portion of the lever to retain it on the fulcrumlr 9. A scales, comprising a sheet metal table with suitable supports stamped and bent downwardly therefrom, a sheet metal base with fulcrums suitably stamped and bent upwardly therefrom, the supports and fulcrums including bendable tongues, the

table and base having openings adjacent the" stamping to admit a bending instrument in assembling the parts; and a pair of levers in bearing engagement with the supports and fulcrums, including portions extending from one side of the scales in engagement with each other, one carrying a slidable poise.

10. A scales, comprising a base with fulcrum means, primary and secondary levers journalled thereon, an arm of the secondary lever being exposed and carrying a slidable poise, the primary lever including a. finger extending beneath the exposed arm and a table covering the base and levers, with inward extensions resting on the levers.

MAX MICHAEL MUNK. 

